7049 aluminium alloy explained

The Aluminum / aluminum 7049 alloy is a forging aluminum alloy. It has a high stress, corrosion, and cracking resistance^[1] and high machinability. Alloy can be hot formed. It can not be weldable (in some cases, tungsten inert gas welding can applied).

Chemical Composition

No	Element	Content (%)
1	Aluminium	88.7
2	Zinc	7.6
3	Magnesium	2.5
4	Copper	1.5
5	Chromium	0.15

Properties

No	Properties	SI Unit
1	Density	2.6 to 2.8 g/cm3
2	Elastic modulus	70 to 80 GPa
3	Poisson's ratio	0.33
4	Thermal conductivity	154 W/mK
5	Tensile Strength, Ultimate^[2]	517 MPa
6	Fatigue strength^[3]	160 to 170 MPa
7	Specific Heat Capacity	860 J/kg-K

Applications

structural forgings, especially in the missile or aircraft industries.
aircraft structural parts.^[4]
Forged aircraft and missile fittings^[5]
landing gear cylinders
extruded sections
Structural forgings
Missile industries

Designation

Aluminium alloy EN AW 7049 has similarities to the following standard designations and specifications ;

Alloy 7049
UNS A97049
ASTM B209
DIN AlZn8MgCu

References

Web site: 31 August 2012. 7049 aluminum alloy. live. https://web.archive.org/web/20200920174012/https://www.azom.com/article.aspx?ArticleID=6662 . 2020-09-20 .
Web site: Aluminum 7049 properties.
Web site: Alumum alloy 7049. live. https://web.archive.org/web/20160903014429/http://www.makeitfrom.com:80/material-properties/7049-Aluminum . 2016-09-03 .
Web site: 7049 aluminum alloy. live. https://web.archive.org/web/20190831181157/http://referansmetal.com:80/alasimli-aluminyum/product/315/makina-robotics-enerji-kaliplik-aluminyum/en-aw-alzn8mgcu-7049-t7351?lang=en . 2019-08-31 .
Web site: Alloy 7049 applications. live. https://web.archive.org/web/20190215074224/https://materialsdata.nist.gov/bitstream/handle/11115/179/Properties%20of%20Wrought%20Aluminum.pdf?sequence=3&isAllowed=y . 2019-02-15 .